Product Details
Technical features: rr The reactive power capacity is continuously adjusted to achieve stepless compensation.
The reactive power can be dynamically and continuously adjusted in two directions, that is, to compensate for inductive loads and capacitive loads.
Modularization: The whole series of units are modular in design, with beautiful appearance and easy maintenance.
The power unit and its power unit can operate simultaneously or independently, and are independent of each other and have high reliability.
Fast response: The hardware system adopts B high-power switching devices and instantaneous reactive power algorithm to quickly suppress voltage fluctuations and voltage flickers, compensate for reactive power, and shorten the response time to within 100%, which can greatly weaken the power impact of the load and protect the Electrical Equipment.
Less harmonics: Using chain main circuit structure and high-frequency control technology, very few low-order harmonics are generated, reducing harmonic pollution to the power grid.
Low power consumption: The chain main circuit structure does not require large-capacity multiple transformers, filters and large-capacity reactors, and has low power consumption.
Low noise: Using aerospace heat pipe cooling technology, the noise is less than B.
Perfect protection: The perfect self-protection system design monitors the working status of each component and has a bypass protection function.
Easy to maintain: the units are interchangeable, and the modular ones can be inspected individually without affecting each other.
High power density: the impedance and volume of the connected reactor are smaller, and the valve group is small in size.
Wide operating range: The reactive current provided by the device has nothing to do with the bus voltage. When the bus voltage decreases, it operates in a constant current source state and has strong reactive power compensation capabilities. The reactive power compensation capability of a device with the same capacity is equivalent to ~ times that of a device with the same capacity.
Flexible control method: various control strategies such as constant reactive power or constant voltage control, three-phase balance control or split-phase control can be used.
Working principlerr
The hybrid dynamic reactive power generator is a combination of a reactive power generator and a thyristor dynamic reactive power compensation device, forming a new large-capacity continuous reactive power compensation device. Collect signals through the control system and calculate the reactive current of the system. First, dynamic reactive power compensation is performed for rapid switching, and then the reactive power generator is used to perform stepless compensation for the step difference part to achieve a smooth static compensation effect and achieve the highest degree of compliance with The system reactive power is completely balanced.
The core part is based on the principle of active compensation, using high-power B tubes to form a three-phase inverter to provide reactive power, which can be equivalently regarded as an AC voltage source with the same frequency as the power grid with controllable output voltage amplitude. Change the amplitude of the AC side output voltage. When it is greater than the system voltage, the reactive power is compensated (equivalent to the capacitive component being smaller than the system voltage, and the reactive power is absorbed (equivalent to the inductive component). By changing the amplitude, you can control The reactive power provided achieves the purpose of continuous compensation.
The coordinated control of the entire device completely eliminates the intermittent compensation problem caused by the traditional reactive power compensation device and the capacitor group switching method. The reactive power capacity ensures continuous adjustment With smooth output, it ensures fast compensation and high power factor operation throughout the entire process, maximizing energy saving and consumption reduction. However, ordinary compensation uses capacitor compensation, capacitor group switching, and the reactive power output capacity is stepped, with step differences, which is very It is difficult to achieve a complete balance with the system's reactive power. In order to avoid over-compensation, a part of the reactive power will remain that cannot be compensated, which cannot achieve the ideal effect.
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Low noise: Using aerospace heat pipe cooling technology, the noise is less than B.
Perfect protection: Complete self-protection system design, monitors the working status of each component, and has bypass protection function.
Easy maintenance: units can be interchanged, The modular ones can be inspected separately without affecting each other.
High power density: smaller impedance and volume of the connected reactor, small valve group size.
Wide operating range: the reactive current provided by the device is consistent with the busbar It has nothing to do with voltage. When the bus voltage decreases, it works in a constant current source state and has a strong reactive power compensation capability. The reactive power compensation capability of a device with the same capacity is equivalent to ~ times that of a device with the same capacity.
Flexible control method: Various control strategies such as constant reactive power or constant voltage control, three-phase balance control or split-phase control can be used.
Scope of application
This product is widely used in metallurgy, chemical industry, wind power machinery, manufacturing, rail transportation, mining, port transportation, large-scale culture and sports Venues, commercial residences, ore furnaces, electric arc furnaces, automobile manufacturing, coal mines, subways, light rails and other industrial sites. It can effectively solve the three-phase imbalance of the power grid in the power system, excessive negative sequence current and harmonic content, and large-scale and frequent fluctuations in system load operation resulting in voltage fluctuations. Large, there are power quality problems such as voltage drops and reactive power backflow caused by the capacitive operating state of the power system.
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